releaser: Add release notes to /docs for release of 0.45
releaser: Add release notes to /docs for release of 0.45

[ci skip]

gohugoio/hugo,mdhender/hugo,gohugoio/hugo,anthonyfok/hugo,fedelibre/hugo,fedelibre/hugo,anthonyfok/hugo,mdhender/hugo,anthonyfok/hugo,gohugoio/hugo,fedelibre/hugo,mdhender/hugo,mdhender/hugo,fedelibre/hugo